National Addiction & HIV Data Archive Program (NAHDAP)

From the website: "The National Addiction & HIV Data Archive Program acquires, preserves and disseminates data relevant to drug addiction and HIV research. The scope of the data housed at NAHDAP covers a wide range of legal and illicit drugs (alcohol, tobacco, marijuana, cocaine, synthetic drugs, and others) and the trajectories, patterns, and consequences of drug use as well as related predictors and outcomes."

NAHDAP is a program within the Inter-university Consortium for Political and Social Research (ICPSR), a unit in the Institute for Social Research (ISR) at the University of Michigan.